It is difficult to say without context but in reference to laws and regulations it means that women get a much smaller amount of something like property, shares in a business, and money, or that women are of lesser value than men in some other way, such as right of representation in a government. For example, if a brother and a sister inherit money from their parents, the sister (i.e. the women ) would not get as much as the brother (the man). So if the women inherits $1,000 , the man would inherit two and a half times that amount , which would be $ 2,500.

It does mean that it's X 2.5 the numbers of their male peers. For example, If the men have 10 cars, and I told you that women have two and a half times what men have. That would mean that women have 25 cars. two times = X 2 three times = X 3 four times = X 4 and so on. Good luck and have a nice day.